Add to readme

docs/unittesting_tab.md

@@ -16,9 +16,16 @@ Run Tests
 
 This execute tests. The execution is run in a separate environment and the result is displayed below.
 
+| Available functions  | Supported types |
+| ------------- | ------------- |
+| `Assert.ok()`  | `bool`  |
+| `Assert.equal()`  | `uint`, `int`, `bool`, `address`, `bytes32`, `string`  |
+| `Assert.notEqual()` | `uint`, `int`, `bool`, `address`, `bytes32`, `string`  |
+| `Assert.greaterThan()` | `uint`, `int` |
+| `Assert.lesserThan()` | `uint`, `int` |
+
 Continuous integration
 ----------------------
 
 remix-tests is also a CLI, it can be used in a continuous integration environement which support node.js.
 Please find more information in the [remix-test repository](https://github.com/ethereum/remix/tree/master/remix-tests)
-